QuestionIdentify the geometric sequence from the options: A. $3,-15,-33,-51,-69$ B. $2,3,5,9,17$ C. $4,2,1,\frac{1}{2},\frac{1}{4}$ D. $3,6,9,12$

Studdy Solution
Calculate the second ratio for sequence D.
$$Ratio_{2} = \frac{9}{6} \neq2$$The ratio is not consistent, so sequence D is not a geometric sequence.
From the above steps, we can conclude that sequence C is the geometric sequence.